CLAN Chattan was not a clan in the true sense of the word, but an exceptionally powerful Highland confederation, some of those members adhered to the alliance for convenience, others through a genuine blood bond. The name derived from Gillichattan Mor, "the Great servant of St. Catan" of the ancient Culdee Church, who lived on the Island of Bute. By the 12th century, the descendants of the saint's family and his followers had spread to Glenloy and Loch Arkaig in Lochaber. The direct line ended in the 7th Generation with Eva, an only child who married Angus, 6th Chief of Clan Mackintosh in 1291. He accordingly assumed the title of 7th Captain of Clan Chattan. During the war of independence he supported Bruce, probably because his enemies, the Comyns were in the Balliol camp. As a reward in 1319 he received a grant of the Comyns' forfeited lands of Benchar in Badenoch. From this time dates the emergence of the great Clan Chattan confederation - "The Haul Kin of Clann Chattan" which included 17 tribes.